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18,000 BTU MRCOOL DIY 5th Gen 23.9 SEER2 Tri Zone Ceiling Cassette Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 6

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MRCOOL

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Model

DIY-MULTI3-18HP / DIYCASSETTE06HP-230-3

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207442

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Customize 18,000 BTU MRCOOL DIY 5th Gen 23.9 SEER2 Tri Zone Ceiling Cassette Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 6
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6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V
6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V
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6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V
6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V
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6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V
6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V
6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V   + $1,312.00
16ft 3/8 x 5/8 Line Set for DIY 24K & 36K Indoor - R454B
16ft 3/8 x 5/8 Line Set for DIY 24K & 36K Indoor - R454B
16ft 3/8 x 5/8 Line Set for DIY 24K & 36K Indoor - R454B
18,000-BTU-MRCOOL-DIY-5th-Gen-23.9-SEER2-Tri-Zone-Ceiling-Cassette-Mini-Split-Heat-Pump-System-R454B-|-230V-6-6-6-DIY-MULTI3-18HP-DIYCASSETTE06HP-230-3

$5,491.00

18,000 BTU MRCOOL DIY 5th Gen Tri Zone Ceiling Cassette Mini Split Heat Pump System “ 6 + 6 + 6

The MRCOOL DIY 5th Gen 18,000 BTU Tri Zone Ceiling Cassette Mini Split Heat Pump System is a smart and efficient solution for multi room climate control. Featuring three 6,000 BTU ceiling cassette indoor units, this system is ideal for managing comfort in three small to medium sized rooms independently. It includes MRCOOLs DIY friendly Quick Connect line sets, pre charged with R 454B refrigerant, allowing homeowners to install the system without special tools or professional assistance. With a high 23.9 SEER2 efficiency rating and quiet operation, this system offers year round comfort and modern convenience.

Key Features

  • Three Zone Control: Includes three 6,000 BTU ceiling cassette units, perfect for bedrooms, offices, or other small rooms requiring individual temperature settings.
  • Energy Efficient: Rated up to 23.9 SEER2 and 11.6 HSPF2 for optimal performance with reduced energy consumption.
  • Smart Controls: Built in Wi Fi enables control through the SmartHVAC app or voice assistants like Amazon Alexa and Google Assistant.
  • Flush Mount Ceiling Design: Ceiling cassette units provide four way directional airflow and a sleek, unobtrusive look that blends into any ceiling.
  • Eco Friendly Refrigerant: Uses R 454B, a next generation refrigerant with a lower Global Warming Potential (GWP) than traditional refrigerants.
  • Quiet Performance: Low operational noise levels support a peaceful environment, perfect for sleeping, working, or relaxing.
  • Comfort Features: Includes Auto Restart, Follow Me, Sleep Mode, and a 24 hour timer for precise climate control.
  • Air Quality Filtration: Integrated filters in each indoor unit help trap dust, allergens, and airborne contaminants for cleaner indoor air.

System Components

  • Outdoor Unit: 18,000 BTU condenser pre charged with R 454B refrigerant, capable of supporting three indoor zones.
  • Indoor Units:
    • 6,000 BTU Ceiling Cassette
    • 6,000 BTU Ceiling Cassette
    • 6,000 BTU Ceiling Cassette
  • Controllers: Each indoor unit comes with its own remote control and Wi Fi functionality for total comfort management.

Ideal Applications

This tri zone system is ideal for homeowners who want individual control in three small rooms”such as bedrooms, home offices, or guest areas. The flush mounted ceiling cassette design keeps walls clear and allows for uniform air distribution. With smart technology, quiet operation, energy savings, and easy DIY installation, the MRCOOL 6 + 6 + 6 tri zone system is an excellent choice for multi room climate comfort. These bundles require the purchase of a Pre-Charged Line Set, these are not included.

18,000 BTU MRCOOL DIY 5th Generation 3 Zone Multi-Zone Mini Split Condenser - R410A | 230V

MRCOOL 18k DIY 5th Generation 3 Zone Multi-Zone Mini-Split Condenser 230v

The MRCOOL® DIY-MULTI3-18HP230D-O is a revolutionary 18,000 BTU 5th Generation 3 Zone Multi-Zone Mini-Split Condenser that brings you the power to customize comfort across multiple rooms with the convenience of DIY installation. Designed for compatibility with up to three separate indoor air handlers, this system delivers efficient and quiet operation for spaces of varying sizes.

Key Features

  • DIY Installation: Designed for easy installation without the need for special tools or HVAC expertise.
  • Flexible Zoning: Supports up to three zones, allowing for tailored temperature control in multiple areas of your home or office.
  • High Efficiency: Boasts a SEER2 rating of up to 21.2, ensuring energy savings and optimal performance year-round.
  • Inverter Technology: Variable-speed DC inverter provides precise temperature control and minimizes energy use by adjusting output to demand.
  • Smart Home Integration: Includes compatibility with Alexa and Google Assistant for voice-controlled convenience.
  • Corrosion Resistance: Gold Fin® coating provides long-lasting protection against salt air and environmental elements.
  • Low Ambient Cooling: Capable of cooling in temperatures as low as 5°F, making it suitable for a wide range of climates.

Performance & Specifications

  • Cooling Capacity: 18,000 BTU
  • Heating Capacity: 18,000 BTU
  • Voltage: 230V
  • Zone Capability: Up to 3 zones
  • SEER2: Up to 21.2
  • EER2: Up to 12.5
  • HSPF2 (Region IV): Up to 10.5

Additional Benefits

  • Quiet Operation: Engineered for ultra-quiet performance, reducing ambient noise indoors and outdoors.
  • Warranty Protection: Backed by a limited lifetime compressor warranty and 7-year parts coverage for peace of mind.
  • Environmentally Friendly: Utilizes R-454B refrigerant for safe, efficient operation with reduced environmental impact.

The MRCOOL 18k DIY 3 Zone Condenser is the ideal solution for homeowners seeking zoned comfort without professional installation. Its energy efficiency, advanced features, and simple setup make it a standout choice for year-round indoor climate control.

6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V

MRCOOL® DIY® Series 5th Gen OuttaSight® 6K BTU 230V One-Way Ceiling Cassette

The MRCOOL® DIY® Series 5th Generation OuttaSight® 6K BTU One-Way Ceiling Cassette is the perfect solution for discreet, efficient climate control in smaller spaces. Designed for homeowners who want to maintain comfort without sacrificing room aesthetics, this 230V cassette is ideal for compact applications that require powerful air distribution from above.

Key Features:

  • Low-Profile Ceiling Installation: Seamlessly blends into the ceiling for a clean, unobtrusive look while delivering powerful performance.
  • 6,000 BTU Capacity: Ideal for small rooms, offices, or add-on zones in residential or light commercial spaces.
  • Energy-Efficient Inverter Technology: Provides consistent temperature control while reducing energy consumption.
  • DIY® Quick Connect® Installation: Designed for fast and easy installation without the need for special tools or professional HVAC services.
  • Smart Controller Compatibility: Easily integrates with the MRCOOL® SmartHVAC app and is compatible with Amazon Alexa and Google Assistant for voice control.
  • Quiet Operation: Engineered for ultra-quiet function, ensuring minimal disruption in your environment.
  • Customizable Airflow: One-way directional airflow ensures optimal circulation for targeted comfort.
  • Durable Construction: Built to last with high-quality components and corrosion-resistant materials.

Specifications:

  • Model: DIYCASSETTE06HP-230D25-O
  • BTU Rating: 6,000 BTU
  • Voltage: 230V
  • Mounting Style: One-Way Ceiling Cassette
  • Refrigerant: R-454B
  • Compatible Line Sets: Pre-charged MRCOOL® Quick Connect® line sets

With its modern, ceiling-integrated design and simple DIY® installation, the MRCOOL® OuttaSight® 6K BTU One-Way Ceiling Cassette offers the perfect blend of style, functionality, and energy-saving comfort.

25ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B 

DIY25-1438-O 25ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor - R454B

The MRCOOL DIY25-1438-O is a 25-foot pre-charged line set engineered for easy installation with MRCOOL DIY 6K, 9K, and 12K indoor units that utilize R-454B refrigerant. This lineset offers an efficient, mess-free solution for both homeowners and professionals who want a clean and secure HVAC connection without the need for vacuum pumps or refrigerant handling.

Equipped with Quick Connect fittings, this lineset simplifies the installation process by providing a tight, reliable seal—eliminating the need for special tools. The pre-charged refrigerant lines and durable insulation deliver excellent performance and energy efficiency in a wide range of settings.

Key Features:

  • Length: 25 feet of pre-charged copper tubing
  • Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
  • Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
  • Compatibility: Works with MRCOOL DIY 6K, 9K, and 12K indoor units
  • Connection Type: Quick Connect fittings for tool-free installation
  • Insulation: High-quality insulation for optimized thermal performance and protection
  • Construction: Built with corrosion-resistant materials for long-term durability

Perfect for extending the installation distance or replacing an existing lineset, the DIY25-1438-O provides a flexible and user-friendly option for MRCOOL® mini-split systems. Its DIY design ensures users can achieve a professional-grade setup with minimal effort and maximum confidence.

35ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B

DIY35-1438C-O 35ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor with DIY Pro Cable - R454B

The MRCOOL® DIY35-1438C-O is a 35-foot pre-charged lineset with an integrated DIY Pro Cable, engineered for compatibility with MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. This advanced installation component simplifies setup while delivering excellent durability, refrigerant integrity, and safety.

Equipped with patented Quick Connect fittings, this lineset allows for a hassle-free, tool-free connection between indoor and outdoor units. The added DIY Pro Cable enhances reliability and safety during installation, offering pre-attached wiring in a single bundled solution. It's the ideal choice for extended installations requiring both performance and convenience.

Key Features:

  • Length: 35 feet of pre-charged copper tubing
  • Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
  • Refrigerant: Pre-charged with R-454B refrigerant for environmentally responsible performance
  • Compatibility: Designed for MRCOOL DIY 6K, 9K, and 12K indoor units
  • Connection Type: Quick Connect fittings for easy and secure installation
  • Pro Cable: Integrated DIY Pro Cable for simplified wiring and increased safety
  • Insulation: High-quality insulation ensures efficiency and protection from condensation
  • Durability: Built with corrosion-resistant materials for long-term use

The DIY35-1438C-O is the perfect solution for users seeking an extended lineset with built-in power and communication cabling. Its all-in-one design streamlines setup and supports reliable performance in MRCOOL® DIY mini-split systems.

50ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B   

DIY50-1438C-O 50ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor with DIY Pro Cable - R454B

The MRCOOL® DIY50-1438C-O is a 50-foot pre-charged lineset with an integrated DIY Pro Cable, designed for use with MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. This extended-length lineset offers a convenient, all-in-one solution for efficient and reliable HVAC installations.

Featuring patented Quick Connect fittings, this lineset enables a quick and secure connection between indoor and outdoor units without specialized tools. The integrated DIY Pro Cable streamlines wiring and enhances installation safety, making it ideal for professional-quality DIY projects.

Key Features:

  • Length: 50 feet of pre-charged copper tubing
  • Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
  • Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
  • Compatibility: Suitable for MRCOOL DIY 6K, 9K, and 12K indoor units
  • Connection Type: Quick Connect fittings for easy, tool-free installation
  • Pro Cable: Integrated DIY Pro Cable for simplified wiring and enhanced safety
  • Insulation: High-quality insulation to improve energy efficiency and prevent condensation
  • Durability: Constructed with corrosion-resistant materials for lasting performance

This 50-foot lineset with integrated Pro Cable is perfect for installations requiring longer reach and professional-grade convenience. It ensures reliable operation and an efficient setup for MRCOOL® DIY mini-split systems.

16ft 3/8 x 5/8 Line Set for DIY 24K & 36K Indoor - R454B

DIY16-3858-O 16ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor - R454B

The MRCOOL® DIY16-3858-O is a 16-foot pre-charged lineset designed specifically for MRCOOL® DIY 24K and 36K indoor units using R-454B refrigerant. This lineset simplifies installation by eliminating the need for vacuum pumps or refrigerant charging, making it perfect for both DIY enthusiasts and professionals.

Featuring Quick Connect® fittings, this lineset allows for quick, secure, and tool-free connections between indoor and outdoor units. The high-quality insulation and durable copper tubing ensure optimal thermal performance and long-lasting reliability.

Key Features:

  • Length: 16 feet of pre-charged copper tubing
  • Line Sizes: 3/8 inch liquid line and 5/8 inch suction line
  • Refrigerant: Pre-charged with environmentally friendly R-454B
  • Compatibility: Designed for MRCOOL® DIY 24K and 36K indoor units
  • Connection Type: Quick Connect® fittings for easy installation
  • Insulation: Superior insulation to reduce energy loss and prevent condensation
  • Durability: Corrosion-resistant construction for extended service life

This lineset offers a reliable and efficient solution for extending or replacing refrigerant lines in MRCOOL® DIY mini-split systems, ensuring hassle-free installation and optimal system performance.

More Information
18,000 BTU MRCOOL DIY 5th Generation 3 Zone Multi-Zone Mini Split Condenser - R410A | 230V
SKUDIY-MULTI3-18HP230D-O
Weight (in lbs)101.630000
Brand/ManufacturerMRCOOL
HSPF210
Cooling BTU18,000
Heating BTU18,000
Decibel Level (dBA)60
RefrigerantR454B
SEER2 (Efficiency)23.9
Compressor TypeRotary
Liquid Line1/4
Suction Line3/8
Liquid Valve Size 1/4
Suction Valve Size 3/8
Electrical208/230
Max Breaker Size20
Min. Breaker Size16
BTU/Tonnage18,000 BTU/1.5 Ton
Zone CompatibilityMulti Zone
Height26.5
Width35.04
Depth13.46
Warranty7 Year Compressor/5 Year Parts Warranty
Resources You will need Adobe Acrobat Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
6,000 BTU MRCOOL DIY 5th Generation OuttaSight Single Zone One-Way Ceiling Cassette Mini Split Air Handler - R410A | 230V
SKUDIYCASSETTE06HP-230D25-O
Weight (in lbs)45.000000
Brand/ManufacturerMRCOOL
Decibel Level (dBA)35.5
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Mini Split TypeCeiling Cassette
Zone CompatibilityMulti Zone
Indoor Units15 + 15 + 18
Height8.98
Width50.31
Depth13.19
Warranty 5-Year Part/7-Year Compressor
Resources" You will need Adobe® Acrobat® Reader to view PDF documents."
Safety InformationPROPOSITION 65 WARNING
25ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B 
SKUDIY25-1438-O
Weight (in lbs)10.400000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Indoor Units15 + 15 + 18
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
35ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B
SKUDIY35-1438C-O
Weight (in lbs)17.600000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Indoor Units15 + 15 + 18
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
50ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B   
SKUDIY50-1438C-O
Weight (in lbs)24.000000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Indoor Units15 + 15 + 18
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
16ft 3/8 x 5/8 Line Set for DIY 24K & 36K Indoor - R454B
SKUDIY16-3858-O
Weight (in lbs)15.900000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Line3/8"
Suction Line5/8"
Liquid Valve Size 3/8
Suction Valve Size 5/8
Electrical230 V. 1 Phase 60 Hz
Mini Split TypeWall Mounted
Warranty5-year Parts / 7-year Compressor
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
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MRCOOL mini split systems combine innovative design with advanced manufacturing to deliver efficient, reliable comfort wherever you need it. Built with cutting-edge technology, these systems ensure optimal performance and flexibility for any space.